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ADA4850-1_07中文资料

High Speed, Rail-to-Rail Output Op Amps with Ultralow Power-Down

FEATURES

Ultralow power-down current: 150 nA/amplifier maximum Low quiescent current: 2.4 mA/amplifier High speed

175 MHz, 3 dB bandwidth 220 V/μs slew rate

85 ns settling time to 0.1% Excellent video specifications 0.1 dB flatness: 14 MHz Differential gain: 0.12% Differential phase: 0.09°

Single-supply operation: 2.7 V to 6 V Rail-to-rail output

Output swings to within 80 mV of either rail Low voltage offset: 0.6 mV

APPLICATIONS

Portable multimedia players Video cameras

Digital still cameras Consumer video Clock buffers

GENERAL DESCRIPTION

The ADA4850-1/ADA4850-21 are low price, high speed, voltage feedbacks rail-to-rail output op amps with ultralow power-down. Despite their low price, the ADA4850-1/ADA4850-2 provide excellent overall performance and versatility. The

175 MHz, 3 dB bandwidth and 220 V/μs slew rate make these amplifiers well-suited for many general-purpose, high speed applications.

The ADA4850-1/ADA4850-2 are designed to operate at supply voltages as low as 2.7 V and up to 6 V at 2.4 mA of supply

current per amplifier. In power-down mode, the supply current is less than 150 nA, ideal for battery-powered applications. The ADA4850 family provides users with a true single-supply capability, allowing input signals to extend 200 mV below the negative rail and to within 2.2 V of the positive rail. The output of the amplifier can swing within 80 mV of either supply rail. With its combination of low price, excellent differential gain (0.12%), differential phase (0.09°), and 0.1 dB flatness out to 14 MHz, these amplifiers are ideal for video applications. The ADA4850-1/ADA4850-2 are designed to work in the extended temperature range of 40°C to +125°C.

ADA4850-1_07中文资料

Rev. B

Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners.

ADA4850-1/ADA4850-2

PIN CONFIGURATIONS

ADA4850-1_07中文资料

POWER DOWN+VSNCOUTPUT–INNC+IN–VS

6

010-2NC = NO CONNECT

350

Figure 1. 8-Lead, 3 mm × 3 mm LFCSP

C

C

1

NNDD2

PP6543VOUT112+VS–IN111VOUT2+IN110–IN2–VS9

+IN2

CCCC3

4NNNN00-2NC = NO CONNECT

ADA4850-1_07中文资料

350

Figure 2. 16-Lead, 3 mm × 3 mm LFCSP

21

)

B0d( NIA–1G POO–2L-DES–3OLC–4–5–61

10

100

1000

4

50-02FREQUENCY (MHz)

350

Figure 3. Small Signal Frequency Response

1

Patents pending.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.Tel: 781.329.4700 http://www.wenkuxiazai.com Fax: 781.461.3113 ©2005–2007 Analog Devices, Inc. All rights reserved.

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